[Hotfix] The MySQL Connector/J is incompatible with the Apache 2.0 license.

[zhuangchong]

What changes were proposed in this pull request

The binary package lib directory contains mysql-connector-java-8.0.27.jar

Remove this jar because MySQL Connector/J is not compatible with Apache 2.0 licenses.

Brief change log

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

(or)

This change is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

Does this pull request potentially affect one of the following parts

• Dependencies (does it add or upgrade a dependency): (yes / no)

[SbloodyS]

We should add this to the docs to tell users downloading mysql jar locally.

[zhuangchong]

There are instructions in the deployment document (https://streampark.apache.org/docs/platform/platform-build#introduce-mysql-dependency-package). At the same time, the instructions will be checked when starting the project (

incubator-streampark/streampark-console/streampark-console-service/src/main/java/org/apache/streampark/console/base/config/SpringProperties.java

Lines 56 to 69 in f9421f6

	case "mysql":
	try {
	Class.forName("com.mysql.cj.jdbc.Driver");
	springConfig.put("spring.datasource.driver-class-name", "com.mysql.cj.jdbc.Driver");
	} catch (ClassNotFoundException e) {
	try {
	Class.forName("com.mysql.jdbc.Driver");
	springConfig.put("spring.datasource.driver-class-name", "com.mysql.jdbc.Driver");
	} catch (ClassNotFoundException e1) {
	throw new ExceptionInInitializerError(
	"datasource.dialect is mysql, \"com.mysql.cj.jdbc.Driver\" and \"com.mysql.jdbc.Driver\" classes not found, Please ensure that the MySQL Connector/J can be found under $streampark/lib,\n"
	+ "Notice: The MySQL Connector/J is incompatible with the Apache 2.0 license, You need to download and put it into $streampark/lib");
	}
	}

)

[SbloodyS]

I see. Thanks for clarification.

[wolfboys]

LGTM